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    <title>Document</title>
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<script>
    // 1. 注册提交数据到登录页(直接打开登录页没有数据)
    // 2. 在登录页进行数据解析

    // "http://127.0.0.1:5500/day13/html/login.html?user=a123123&pwd=123123&phone=17386141516&email=1272071496%40qq.com"

    // 参数数据"?user=a123123&pwd=123123&phone=17386141516&email=1272071496%40qq.com"
    // (1) 单条数据以键值对的形式存在(key=value  key描述 value值)
    // (2) 数据之间以 & 分隔

    // 数据解析: 将数据解析为对象 => {user:"xxx",pwd:"xxx","phone":"xxx",email:"xxx"}

    // ?user=a123123&pwd=123123&phone=17386141516&email=1272071496%40qq.com
    // var search = location.search;
    // var data = {};
    // if (search) {
    //     console.log(search);
    //     var str = search.substring(1);
    //     console.log(str);

    //     var list = str.split("&");
    //     console.log(list);

    //     for (var i = 0; i < list.length; i++) {
    //         var item = list[i];  // 'user=a123123', 'pwd=123123'
    //         var key = item.split("=")[0]; // "user"  "pwd"
    //         var val = item.split("=")[1]; // "a123123"
    //         console.log(item, key, val);

    //         data[key] = val;
    //     }

    // } else {  //没有数据(直接打开登录页) -> 去注册
    //     location.href = "./register.html"
    // }

    // console.log(data);






    // ?user=a123123&pwd=123123&phone=17386141516&email=1272071496%40qq.com
    var search = location.search;
    var data = {};
    if (search) {
        console.log(search);

        // var reg = /(\w+)=(\w+)/g;
        var reg = /(\w+)=([^&]+)/g;

        var arr = null;
        while (arr = reg.exec(search)) {
            console.log(arr);

            var key = arr[1];
            var val = arr[2];
            data[key] = val;
        }

        console.log(data);






    } else {  //没有数据(直接打开登录页) -> 去注册
        location.href = "./register.html"
    }


</script>

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